Across
- 1. Tissue which lines a blood vessel
- 3. The smallest arteries
- 6. The outer tunic; tunica ____
- 7. Structures which prevent backflow of blood
- 10. The largest artery in the body
- 12. Left atrioventricular valve
- 13. Origin of stimulus for heart contraction
- 17. Atria which receives deoxygenated blood
- 20. Type of capillaries with pores
- 24. Receiving chamber of the heart
- 25. Largest lymphatic vessel; ______ duct
- 26. Vessels where gas exchange occurs
- 29. The location of the nucleus within the cardiac muscle cell
- 30. Type of capillaries with pinocytotic vesicles
- 32. Another term for elastic arteries; ____ artery
- 33. Receives blood from capillaries; post capillary _____
- 36. Most of the named arteries are _____ arteries
- 37. The node which is the pacemaker
- 39. Smooth muscle sphincter; ____ sphincter
- 40. Atrioventricular bundle; Bundle of ______;
- 42. The middle tunic; tunica ____
Down
- 2. Discs in cardiac muscle
- 4. Muscular layer of the cardiac wall
- 5. Aortic valve; pulmonary valve
- 8. Atrioventricular node; ___ node (abbreviation)
- 9. Threadlike structures which attach to the
- 11. Part of the conducting system; right and left
- 14. Connection between an artery and a vein; bypassing the capillary bed
- 15. Vessel which carries blood away from the heart
- 16. Using the classification for arteries; the largest arteries are ____ arteries
- 18. Structure which divides chambers
- 19. Type of vessel which starts as blind sac
- 21. Outer covering of the heart
- 22. Specialized fibers for conduction
- 23. Vessel which carries blood towards the heart
- 27. ______
- 28. Cardiac muscle cells
- 31. Large, leaky capillaries
- 34. Lining of the heart
- 35. ______ tendineae
- 38. Muscle which attaches to chordae tendineae
- 41. The innermost tunic; tunica ____